No, it's not (always) more dangerous, please read the operation manuals if you don't believe me. Let me put it another way. V1 is not the speed after which you

No, it's not (always) more dangerous, please read the operation manuals if you don't believe me. Let me put it another way. V1 is not the speed after which you cannot abort, V1 is the speed after which you can attempt to takeoff. Or, quoting the Boeing flight manual, > V1 is the maximum speed at which the flight crew must take the first action to reject a takeoff. If something happens _before_ V1, pilots must abort takeoff, period. However, if something happens after V1, pilots can still make a decision to stay on the ground. Furthermore, V1 is calculated so that the plane can stop before the end of the runway even if one of the braking systems is not working properly (e. g. one of the engines is out and reverse thrust cannot be used). On a fully working plane, the actual distance necessary to stop will be lower. Then, there is always a safety zone right after the runway, which is not taken into account for V1 calculation. Anyway, the investigation will thoroughly consider all the factors, let's wait for the results.